Vynckier, S., Pihet, P., Flemal, JM., Meulders, J.-P., & Wambersie, A. (1983). Improvement of a P(65)+be Neutron Beam for Therapy At Cyclone, Louvain-la-neuve. Physics in Medicine and Biology, 28(6), 685-691. https://doi.org/10.1088/0031-9155/28/6/008 (Original work published 1983)